{"api_version":"1","generated_at":"2026-10-06T21:46:39+00:00","cve":"CVE-2026-104636","urls":{"html":"https://cve.report/CVE-2026-104636","api":"https://cve.report/api/cve/CVE-2026-104636.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-104636","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-104636"},"summary":{"title":"Gitea SSRF through Git HTTP redirects in mirrors and fetches","description":"Gitea validated the initial remote URL for push mirrors, wiki remote checks, and fetches of migrated pull request heads, but the subsequent raw Git operations followed HTTP redirects without revalidating the destination. A repository administrator using a policy-allowed endpoint that redirects could make Gitea's Git client send requests to an address that the outbound host policy would otherwise block. The impact depends on the configured policy and the internal services reachable from the server.","state":"PUBLISHED","assigner":"Gitea","published_at":"2026-10-06 20:17:15","updated_at":"2026-10-06 20:17:15"},"problem_types":["CWE-918","CWE-918 CWE-918: Server-Side Request Forgery (SSRF)"],"metrics":[],"references":[{"url":"https://github.com/go-gitea/gitea/releases/tag/v28.0.0","name":"https://github.com/go-gitea/gitea/releases/tag/v28.0.0","refsource":"88ee5874-cf24-4952-aea0-31affedb7ff2","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://github.com/go-gitea/gitea/pull/39426","name":"https://github.com/go-gitea/gitea/pull/39426","refsource":"88ee5874-cf24-4952-aea0-31affedb7ff2","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://blog.gitea.com/release-of-28.0.0/","name":"https://blog.gitea.com/release-of-28.0.0/","refsource":"88ee5874-cf24-4952-aea0-31affedb7ff2","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://github.com/go-gitea/gitea/security/advisories/GHSA-g4hw-fg4c-89mq","name":"https://github.com/go-gitea/gitea/security/advisories/GHSA-g4hw-fg4c-89mq","refsource":"88ee5874-cf24-4952-aea0-31affedb7ff2","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-104636","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-104636","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Gitea","product":"Gitea","version":"affected 1.27.3 semver","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[{"source":"CNA","value":"https://github.com/ihopenre-eng","lang":"en"},{"source":"CNA","value":"https://github.com/ElectQ","lang":"en"},{"source":"CNA","value":"https://github.com/TheFox0x7","lang":"en"},{"source":"CNA","value":"https://github.com/silverwind","lang":"en"},{"source":"CNA","value":"https://github.com/bircni","lang":"en"},{"source":"CNA","value":"https://github.com/wxiaoguang","lang":"en"}],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","packageName":"gitea.dev","product":"Gitea","vendor":"Gitea","versions":[{"lessThanOrEqual":"1.27.3","status":"affected","version":"0","versionType":"semver"}]}],"credits":[{"lang":"en","type":"reporter","value":"https://github.com/ihopenre-eng"},{"lang":"en","type":"reporter","value":"https://github.com/ElectQ"},{"lang":"en","type":"remediation developer","value":"https://github.com/TheFox0x7"},{"lang":"en","type":"remediation developer","value":"https://github.com/silverwind"},{"lang":"en","type":"remediation developer","value":"https://github.com/bircni"},{"lang":"en","type":"remediation developer","value":"https://github.com/wxiaoguang"}],"descriptions":[{"lang":"en","value":"Gitea validated the initial remote URL for push mirrors, wiki remote checks, and fetches of migrated pull request heads, but the subsequent raw Git operations followed HTTP redirects without revalidating the destination. A repository administrator using a policy-allowed endpoint that redirects could make Gitea's Git client send requests to an address that the outbound host policy would otherwise block. The impact depends on the configured policy and the internal services reachable from the server."}],"problemTypes":[{"descriptions":[{"cweId":"CWE-918","description":"CWE-918: Server-Side Request Forgery (SSRF)","lang":"en","type":"CWE"}]}],"providerMetadata":{"dateUpdated":"2026-10-06T19:24:45.427Z","orgId":"88ee5874-cf24-4952-aea0-31affedb7ff2","shortName":"Gitea"},"references":[{"name":"GitHub Security Advisory GHSA-g4hw-fg4c-89mq","tags":["vendor-advisory"],"url":"https://github.com/go-gitea/gitea/security/advisories/GHSA-g4hw-fg4c-89mq"},{"name":"Fix: go-gitea/gitea pull request #39426","tags":["patch"],"url":"https://github.com/go-gitea/gitea/pull/39426"},{"name":"Gitea 28.0.0 release announcement","tags":["release-notes"],"url":"https://blog.gitea.com/release-of-28.0.0/"},{"name":"go-gitea/gitea v28.0.0 release","tags":["release-notes"],"url":"https://github.com/go-gitea/gitea/releases/tag/v28.0.0"}],"title":"Gitea SSRF through Git HTTP redirects in mirrors and fetches"}},"cveMetadata":{"assignerOrgId":"88ee5874-cf24-4952-aea0-31affedb7ff2","assignerShortName":"Gitea","cveId":"CVE-2026-104636","datePublished":"2026-10-06T19:24:45.427Z","dateReserved":"2026-10-04T21:59:53.559Z","dateUpdated":"2026-10-06T19:24:45.427Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-10-06 20:17:15","lastModifiedDate":"2026-10-06 20:17:15","problem_types":["CWE-918","CWE-918 CWE-918: Server-Side Request Forgery (SSRF)"],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"104636","Ordinal":"1","Title":"Gitea SSRF through Git HTTP redirects in mirrors and fetches","CVE":"CVE-2026-104636","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"104636","Ordinal":"1","NoteData":"Gitea validated the initial remote URL for push mirrors, wiki remote checks, and fetches of migrated pull request heads, but the subsequent raw Git operations followed HTTP redirects without revalidating the destination. A repository administrator using a policy-allowed endpoint that redirects could make Gitea's Git client send requests to an address that the outbound host policy would otherwise block. The impact depends on the configured policy and the internal services reachable from the server.","Type":"Description","Title":"Gitea SSRF through Git HTTP redirects in mirrors and fetches"}]}}}